Capillary Pressure Thermostats

EWD Series ( Constant Cut-In Thermostat)

Terminal C-L cut-in at temperature rise. Terminal L-H of auxiliary switch cut-out when the shaft turned to OFF point. Terminal C-L can be cut-out at OFF point, and can be forced ON at ON point. The ON temperature is constant at any position from Warm to Cold, the OFF temperature is adjustable. This behavior assure an automatic defrost function.

The WD-R series with an internal bellows heating resistance connected to C-L, is able to be used at cross-ambient in a refrigerator.

EWD-E Series (Thermostats for explosion area)

Constant cut-in thermostats for explosive area.

This is a special designed type with SPST switch plus an aux switch. It is an "n" type apparatus in accordance with the standard IEC79-15. It can prevent the possible explosion when the switch body is located in the explosive gas mixed air. Ex approval of China was obtained and VDE Ex test was past.

Maybe with an internal bellows heating resistance connected to C-L terminal to enable to be used at cross ambient in a refrigerator.